Home / Standards / GB/T 12496.7-1999 GB/T 12496.7-1999 Active Test methods of wooden activated carbon--Determination of pH 木质活性炭试验方法 pH值的测定 Standard Type GBT ICS 65-050 CCS B73 Status 现行 Issue Date 1999-11-10 Implementation 2000-04-01 Responsible Dept 国家林草局 Drafting Unit N/A